Use KeyDown instead of RawKeyDown for Android key events.

content/browser/renderer_host/native_web_keyboard_event_android.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/public/browser/native_web_keyboard_event.h"
 
 #include "base/android/jni_android.h"
 #include "content/browser/renderer_host/input/web_input_event_builders_android.h"
 #include "ui/gfx/native_widget_types.h"
 
@@ skipping 11 matching lines @@
 
 }
 
 namespace content {
 
 NativeWebKeyboardEvent::NativeWebKeyboardEvent()
     : os_event(NULL),
       skip_in_browser(false) {
 }
 
-NativeWebKeyboardEvent::NativeWebKeyboardEvent(blink::WebInputEvent::Type type,
-                                               int modifiers,
-                                               double time_secs,
-                                               int keycode,
-                                               int scancode,
-                                               int unicode_character,
-                                               bool is_system_key)
-    : WebKeyboardEvent(WebKeyboardEventBuilder::Build(nullptr,
-                                                      nullptr,
-                                                      type,
-                                                      modifiers,
-                                                      time_secs,
-                                                      keycode,
-                                                      scancode,
-                                                      unicode_character,
-                                                      is_system_key)) {
-  os_event = NULL;
-  skip_in_browser = false;
-}
-
 NativeWebKeyboardEvent::NativeWebKeyboardEvent(
     JNIEnv* env,
     const base::android::JavaRef<jobject>& android_key_event,
     blink::WebInputEvent::Type type,
     int modifiers,
     double time_secs,
     int keycode,
     int scancode,
     int unicode_character,
     bool is_system_key)
     : WebKeyboardEvent(WebKeyboardEventBuilder::Build(env,
                                                       android_key_event,
                                                       type,
                                                       modifiers,
                                                       time_secs,
                                                       keycode,
                                                       scancode,
                                                       unicode_character,
-                                                      is_system_key)) {
-  os_event = NewGlobalRefForKeyEvent(android_key_event.obj());
-  skip_in_browser = false;
+                                                      is_system_key)),
+      os_event(NULL),

[no sievers, 2016/08/08 23:08:51]

nit: nullptr here and elsewhere, while you're in here

+      skip_in_browser(false) {
+  if (!android_key_event.is_null())
+    os_event = NewGlobalRefForKeyEvent(android_key_event.obj());
 }
 
 NativeWebKeyboardEvent::NativeWebKeyboardEvent(
     const NativeWebKeyboardEvent& other)
     : WebKeyboardEvent(other),
       os_event(NewGlobalRefForKeyEvent(other.os_event)),
       skip_in_browser(other.skip_in_browser) {
 }
 
 NativeWebKeyboardEvent& NativeWebKeyboardEvent::operator=(
     const NativeWebKeyboardEvent& other) {
   WebKeyboardEvent::operator=(other);
 
   os_event = NewGlobalRefForKeyEvent(other.os_event);
   skip_in_browser = other.skip_in_browser;
 
   return *this;
 }
 
 NativeWebKeyboardEvent::~NativeWebKeyboardEvent() {
   DeleteGlobalRefForKeyEvent(os_event);
 }
 
 }  // namespace content